Search Results - "Hourdakis, C."

On the total system error of a robotic radiosurgery system: phantom measurements, clinical evaluation and long-term analysis by Pantelis, E, Moutsatsos, A, Antypas, C, Zoros, E, Pantelakos, P, Lekas, L, Romanelli, P, Zourari, K, Hourdakis, C J

“…The total system error (TSE) of a CyberKnife system was measured using two phantom-based methods and one patient-based method. The standard radiochromic film…”
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Determination of the diagnostic x-ray tube practical peak voltage (PPV) from average or average peak voltage measurements by Hourdakis, C J

“…The practical peak voltage (PPV) has been adopted as the reference measuring quantity for the x-ray tube voltage. However, the majority of commercial kV-meter…”
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Establishing the European diagnostic reference levels for interventional cardiology by Siiskonen, T., Ciraj-Bjelac, O., Dabin, J., Diklic, A., Domienik-Andrzejewska, J., Farah, J., Fernandez, J.M., Gallagher, A., Hourdakis, C.J., Jurkovic, S., Järvinen, H., Järvinen, J., Knežević, Ž., Koukorava, C., Maccia, C., Majer, M., Malchair, F., Riccardi, L., Rizk, C., Sanchez, R., Sandborg, M., Merce, M. Sans, Segota, D., Sierpowska, J., Simantirakis, G., Sukupova, L., Thrapsanioti, Z., Vano, E.

“…•New European diagnostic reference levels in cardiology are suggested.•Data is obtained from 13 countries.•CA, PCI, TAVI, electrophysiological procedures and…”
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Diagnostic reference levels and patient doses in computed tomography examinations in Greece by Simantirakis, G, Hourdakis, C J, Economides, S, Kaisas, I, Kalathaki, M, Koukorava, C, Manousaridis, G, Pafilis, C, Tritakis, P, Vogiatzi, S, Kamenopoulou, V, Dimitriou, P

“…The purpose of this study is to present a national survey that was performed in Greece for the establishment of national Dose Reference Levels (DRLs) for seven…”
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Establishment of diagnostic reference levels for dental panoramic radiography in Greece by Manousaridis, G, Koukorava, C, Hourdakis, C J, Kamenopoulou, V, Yakoumakis, E, Tsiklakis, K

“…The purpose of the present study was to present the national diagnostic reference levels (DRL) established for panoramic dental examinations in Greece. The…”
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A Holistic Approach to Assessment of Population Exposure to Radiation: Challenges and Initiatives of a Regulatory Authority by Askounis, P, Boziari, A, Carinou, E, Drikos, G, Economides, S, Hourdakis, C.J, Housiadas, C, Kalathaki, M, Kamenopoulou, V, Karabetsos, E, Kehagia, K, Kolovou, M, Koukorava, C, Lasithiotakis, M, Makridakis, T, Maltezos, A, Mitrakos, D, Nikolaki, M, Nikolaou, M, Nicolaou, P, Petri, A, Potiriadis, C, Raftopoulos, S, Simantirakis, G, Tafili, V, Veltsos, C, Vogiatzi, S, Xarchoulakos, D.C, Zourari, K

“…ABSTRACTA regulatory authority for radiation safety should continuously evaluate and improve the national safety framework, in line with current requirements…”
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Establishment of diagnostic reference levels for dental intraoral radiography by Manousaridis, G, Koukorava, C, Hourdakis, C J, Kamenopoulou, V, Yakoumakis, E, Tsiklakis, K

“…Diagnostic reference levels (DRLs) is a tool for the optimisation of radiological procedures. Establishment of a DRL is a requirement of national regulations…”
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The effect of a compression paddle on energy response, calibration and measurement with mammographic dosimeters using ionization chambers and solid-state detectors by Hourdakis, C J, Boziari, A, Koumbouli, E

“…A compression paddle is always used in mammography x-ray examinations, in order to improve image quality and reduce patient doses. Although clinical dose…”
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Review and revision of the national regulatory framework for the medical exposures on the occasion of the transposition of the new EC Directive 59/2013 by Kamenopoulou, V, Hourdakis, C, Dimitriou, P

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Image quality and patient dose in computed tomography examinations in Greece by Simantirakis, G., Hourdakis, C. J., Economides, S., Dimitriou, P.

“…The purpose of this study is to evaluate image quality of various computed tomography (CT) scanners installed in Greece, as well as to investigate patient…”
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The use of active personal dosemeters as a personal monitoring device: comparison with TL dosimetry by Boziari, A, Koukorava, C, Carinou, E, Hourdakis, C J, Kamenopoulou, V

“…The use of active personal dosemeters (APDs) not only as a warning device but also, in some cases, as an official and hence stand-alone dosemeter is rapidly…”
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Calibration, performance and type testing of personal dosemeters used in ionising-radiation applications in Greece by Boziari, A., Hourdakis, C. J.

“…Active Personal Dosemeters (APDs) are widely used in real-time personal dosimetry. Their performance, operational characteristics and limitations, as well as…”
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Comparison of full field digital (FFD) and computed radiography (CR) mammography systems in Greece by Kalathaki, M., Hourdakis, C. J., Economides, S., Tritakis, P., Kalyvas, N., Simantirakis, G., Manousaridis, G., Kaisas, I., Kamenopoulou, V.

“…The purpose of this study is to evaluate and compare the performance of 52 full field digital (FFD) and computed radiography (CR) mammography systems checked…”
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A Monte Carlo estimation of tissue optical properties for use in laser dosimetry by Hourdakis, C J, Perris, A

“…In certain clinical situations, such as photodynamic therapy, light dosimetry should be considered. The propagation of light in tissues is influenced by…”
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Occupational exposure in Greek industrial radiography laboratories (1996–2003) by Economides, S., Tritakis, P., Papadomarkaki, E., Carinou, E., Hourdakis, C., Kamenopoulou, V., Dimitriou, P.

“…More than 40 industrial radiography laboratories are operating in Greece using X-ray or gamma-ray sources and more than 250 workers occupationally exposed to…”
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PO-1413: Ion chamber beam quality correction factors for brachytherapy dosimetry measurements by Thrapsanioti, Z., Pantelis, E., Karaiskos, P., Hourdakis, C.

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Image quality evaluation and patient dose assessment of medical fluoroscopic X-ray systems: a national study by Economides, S., Hourdakis, C. J., Kalivas, N., Kalathaki, M., Simantirakis, G., Tritakis, P., Manousaridis, G., Vogiatzi, S., Kipouros, P., Boziari, A., Kamenopoulou, V.

“…This study presents the results from a survey conducted by the Greek Atomic Energy Commission (GAEC), during the period 1998–2003, in 530 public and private…”
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Estimation of Doses Received by Patients Undergoing Radiological Examinations in Greece by Papageorgiou, E., Vardalaki, E., Hourdakis, C.J., Dimitriou, P.

“…This study deals with the estimation of doses received by patients undergoing radiological examinations in order to establish diagnostic reference levels…”
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Performance of medical radiographic X-ray systems in Greece for the time period 1998–2004 by Economides, S, Hourdakis, C.J, Kalivas, N, Kalathaki, M, Simantirakis, G, Tritakis, P, Manousaridis, G, Vogiatzi, S, Kipouros, P, Boziari, A, Kamenopoulou, V

“…Abstract This study presents the results of the on-site inspections performed by the Greek Atomic Energy Commission (GAEC) on conventional X-ray systems, both…”
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Calibration of dosemeters used in mammography with different X ray qualities: Euromet Project No. 526 by Witzani, J., Bjerke, H., Bochud, F., Csete, I., Denoziere, M., de Vries, W., Ennow, K., Grindborg, J. E., Hourdakis, C., Kosunen, A., Kramer, H. M., Pernicka, F., Sander, T.

“…The effect of different X ray radiation qualities on the calibration of mammographic dosemeters was investigated within the framework of a EUROMET (European…”
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